Evaporator and condenser



F. H. SCHUBERT.

EVAPORATOR AND CONDENSER. APPLICATION FILED MAR. 28. 1919.

1,361,910, Patented Dec.. 14,1920.

' To all whom it may concern FRANK HQSCHUBERT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO BROWN'- j EERRIER COMPANY,

WARE.

.le it kno'wii that I. liiaxii II. SoHUiiiiirr,

a citizen of the United States ot Aniericaf and resident of Philadelphia, in the.coun ty o'lf'Philadelphia and' State Ot Pennsylvania,l

have invented a cei'taiii newanduseful I inprovement in Ilvaporators and .Condensers,.

ot which the tollowing is al true and exact description; reference being had to tlie'acconipanying drawings. ywhich form.a part thereo't'. t

My invention Irelates to combined evapoi'atoi's and condensersiot the kind, Jfor in- Y stancefthat are used to produce potable water on ship board. and it hastorits object tiri'pi'ovide. a simple, stronej. compact and ettcient apparatus tor this purpose; particular Jfeatures which I have in view bev4ing a construction in which-a large part ot' the maiii structure is made ot a single casting` with consequent avoidance ot Joints, and a battling arrangement which -will tend to prevent water yreaching :the condensing part oit" the appa atiis either by being'carried with 4the steam or by splashing incident to movement of' the appai'atus when is usedxon ship board. A further improved Jfeature otvniy,apparatus has to do with the lprovision tor mixing air with the steam in such-a way that it will becari'ied into the condensed water: I. have also iii yview the special .construction ot the condenser in which the steam conducting tubes are'at the saine tii'negiven a `large area in contact with a'cooling fluid and are prevented from exerting disruptivestrains on the tiilie sheets to which they are secured@ l The nature ot my improvements will be bestwundei'stood as described in connection withv the drawings in 'which they are lillustrated and. in which-` Figure f 1 a ceiiti'al through my improved evaporator and condenser, and

Fig. 2 'is a plan view on an enlarged scale of the aerator. consistingot steam collecting hood.' Steam nozzle and aei'ator body shown iii v'ei'ticalsection in Fig. l.

is the-body of my evaporator chamber which may conveniently` be Ot the bowl y shape shown, and which is pryided with a central bottom 'portion A.` formed with holes to serve as a tiib'e sheet. Surrounding this tube sheet ,portion A, and foi'rned'as a vertical Isection OE WILMINGTON, DELAWARE, A CORPORATION OE DELA- ,EVAPORATOR AND CONDENSE.

Specification f'Letters Patent. Patented Dec. 14, 1920. Awiiciion ined March 28, 191'9. serial Nd. 285,739. i

part ot the lsame. casting'as the bowl A, is the upwardly extending cylinder A2, which extends up into the steam space'of the evaporator, as'sliowii; `also surrounding the tube sheet portion A. and extending downward theret'iiOm'is the cylindrical body portion A ot the condenser also toi-ined of the same casting' wi'th the howl A and upwardly extending' cylinder Afr" Bis anoutwardly extending anniilar batlie surrounding the cylinder A2 and conveniently formed, as shown, by Hanging out the upper edge ot' this cyliiidei'. C is the top' or cover of the evapora'- tor, which may be secured to the bowl portion A. as shown. by a hinge as indicated at I), and a clamping device, vas indicated at D. VThis cover portion is tormeld with a downwardly extending cylinder B approximately bisecting the annular space between the cylinder A2 andl theouter wall ot' the evaporator and extendine' down towai'd. but not Ito. the water level in the evaporator.

toni Afla-nge on the condenser body and a water receiving chamber H, having a 'water es 'ape passage H" and` anfexcess air escape "passage H2. I indicating filtering material which mayconveniently be used in the water chamber. G. G. etc., are the tubes Ot' the condenser which I preter to form with peripheral co'rrugations which may extend as a helix throughout the length-ot the tubes, and Vwhich have the'advantage of increasing the contactI surface .with the steam on the :casting with the cylinderA.3 by which the apparatus :am-be 'secured to the wallet a ship or other 'supporting means. Ix is a steam heating coil located in the evaporator chamber and lconvenientlysupported by a series'o ribs such as are indicatedat J `K indicates the steam entrance andA K2 the steam exit from the coil. Vater is supplied to the evaporator by gravity. a pump, or equivalent device` not shown, delivering the water through the pipe li and a branch lead'- ing from this pipe indicated at L. The pipe L is continued above its union with the pipe L', draining lirst through a head L, and continuing downward by the pipe lj to the reservoir. not shown. through which the water is supplied. This device will hold the water level in the evaporator at approximately the level indicated hy the bottom ot the bend lf'. )al is a steam collecting hood located in the evaporator and conveniently i'ormed. as shown. ot a tlange M extending downover the inner portion ot' the steam coil K. a top M2, and a downwa'rdly and outwardly extending flange M".

From this hood extends a steam pipe opening into the steam space ol' the evaporator into the air nozzle t). laterally connecting with the open air as indicated at ln operation the evaporator is maintained` with an approximately constant water level, as indicated. and the water is heated by the steam coil lx', the bulk ot the steam coming ottA near the outer periphery ot the evaporator below and passing' upward into the space S on the outside of the baille wall B.

vthence it passes down below the edge ot the batlle 'all and upward through the annular passage S into the space S above the steam cooling cylinder A, and thence it passes down through the tubes ot the condenser, the water escaping into the chamber l". The annular baille B obviously will prevent water heilig carried into the space S2 by the .energetically issuing steam, and will also serve to prevent water trom being splashed into the space S2 by movements ol the ship, and this danger ot water being spl shed into the space S2 is also further counteracted by the batiie l.

Sutlicient steam will be collected under the hood M to result in a steam jet ot' some energy issuing through the. nozzle the etllect ot which as the steam passes into the air nozzle O is to draw air Vtrom the atmosphere through the connection and mix a conside able quantity ot air with the steam, and a considerable, portion olf this air will remain in admixture and solution in the condensed water.

Having now described'my invention` what I claim as ne and desire to secure by Let! ters Patent, is: Y

l. An evaporator and condenser having a body member made up ot' a single casting comprising an evaporator body having a central'portion oi its bottom pierced to torni a tube sheet, a cylindrical upwardly extending member surrounding said tube sheet portion and lying within the evaporator body, and a cylindrical downwardly extending member also.surrounding said tube sheet portion and forming the body ot' the condenser.

An evaporator and condenser having an evaporator chamber toi-med with a cylindrical upwardly extending member extending into theI steam space ot the e vapoirator, and a cylindrical down 'ardly extending member o'tI greater diameter than the upwardly extending member dividing the steam space of the condenser into inner and outer chambers.

3. n evaporator and condenser having an evaporator chamber formed with a cylindrical upwardly extending` member extending` into the steam space ofthe evaporator, and having al1 outwardly extending annular baille, and a cylindrical downwardly extending member of greater diameter than the upwardly extending` member dividing the steam space of the condenser into innerand outer chambers.

l. .in evaporator and condenser having an evaporator body a portion ot' the bottom ot which forms a tube sheet, and which is formed with a cylindrical upwardly extending member surrounding said tube sheet portion. in combination with a cover member provided with a downwardly extending cylimlrical member ot' greater diameter than the upwardly extending cylindrical member and extending below the top edge thereot, a steam coil for heating the evaporator and a tubular condenser extending helow the evaporator body. i c

In an evaporator and condenser, a steam collecting hood located in and extending below the water level of a portion of the evaporator, said hood being formed with an upwardly extending steam delivery nozzle, in combination with an air nozzle surrounding the steam nozzle and in communication with the atmosphere.

(S. In an evaporator,and condenser havsteam collectii'ig hood 'located inthe evaporator and extending over a portion of the coil termed with an upwardly extending steam delivery nozzle, in combination with an'air nozzle surrounding the steam nozzle and in communication with the atmosphere.

FRANK H. SCHUBERT.

mg a steam coil t'or heating the water, av 

